Controls:
You control pitch with W/S keys (Up Arrow/Down Arrow).
You control yaw with A/D keys (Left Arrow/Right Arrow).
You control roll with Q/E keys (Delete/Insert keys).
You control speed with Z/X (Z moves you forward, X moves you backwards). You can also use the '>' and '<' keys.

You can also use a mouse. A very convinient way to fly around is to control direction with the mouse, and keep holding down the 'Z' key.

Clipping (screen, and Z-near and Z-far) is done using the ``Sutherland Hodgman Polygon Clip Algorithm''.